Linux Command Alias

Feature Description: Sets the alias for the directive. Syntax: alias[alias]=[directive name] Supplemental Description: User can use alias, custom instruction aliases.　If you only enter an alias, you can list all current alias settings. The alias's effect only extends to the operation of the login. To automatically set aliases every time you log in, you can set an alias for the directive in. Profile or. cshrc. Parameters: If you do not add any arguments, list all current alias settings.

You can use Linux's graphical tools to easily monitor your system's network performance. In this article, you will learn how to use the MRTG (SNMP-based, monitoring http://www.aliyun.com/zixun/aggregation/10374.html "> Network traffic tools) and Webalizer (the tool that analyzes the site hit Ratio). Many servers, routers, and firewalls are insured in their object markers (OIDs) that they ...

Overview 2.1.1 Why a Workflow Dispatching System A complete data analysis system is usually composed of a large number of task units: shell scripts, java programs, mapreduce programs, hive scripts, etc. There is a time-dependent contextual dependency between task units In order to organize such a complex execution plan well, a workflow scheduling system is needed to schedule execution; for example, we might have a requirement that a business system produce 20G raw data a day and we process it every day, Processing steps are as follows: ...

Earlier, we were already running Hadoop on a single machine, but we know that Hadoop supports distributed, and its advantage is that it is distributed, so let's take a look at the environment. Here we use a strategy to simulate the environment. We use three Ubuntu machines, one for the master and the other two for the slaver. At the same time, this host, we use the first chapter to build a good environment. We use the steps similar to the first chapter to operate: 1, the operating environment to take ...

Function Description: remote login. Syntax: telnet&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [ -8acdeffklrx] [-b< Host Alias [-e< out of character [-k< Domain Name [-l< User Name [-n< Record file [-s< Service Type ...

Feature Description: Remove Alias. Syntax: unalias&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-A] [Alias] Supplemental Note: Unalias for Shell built-in directives, you can delete alias settings. Parameters:-a deletes all aliases.

Refer to Hadoop_hdfs system dual-machine hot standby scheme. PDF, after the test has been added to the two-machine hot backup scheme for Hadoopnamenode 1, foreword currently hadoop-0.20.2 does not provide a backup of name node, just provides a secondary node, although it is somewhat able to guarantee a backup of name node, when the machine where name node resides ...

Function Description: E-mail management procedures. Syntax: elm&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-s< Mail Theme [Recipient alias or address]<[file to enter] or &nbs ...

Pseudo-distributed environment for Windows configuration hadoop-1.1.0 (cont.) Blog Category: Bigdata Windowshadoop in the previous article, I introduced a solution to common problems. However, when I reload the system, and once again install Cygwin and hadoop-1 in the previous article (http://winseclone.iteye.com/blog/1734737), I find that the pseudo distributed environment uses m ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall when optimizes the website, 301 redirects is the stationmaster must an essential optimization, and 301 redirects mainly uses for moves the content from one position to another position. In fact, in understanding is also very simple, such as I have some content on the http://www.abc.com/a.html, and then I want to refactor the site, so I want to move the content on this page to http://www.abc.com/b.html. So, I can actually ...